13 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
index 3306f9fe7140..ce70a193caa7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
@@ -75,7 +75,7 @@ nvkm_pmu_reset(struct nvkm_pmu *pmu)
 {
 	struct nvkm_device *device = pmu->subdev.device;
 
-	if (!(nvkm_rd32(device, 0x000200) & 0x00002000))
+	if (!pmu->func->enabled(pmu))
 		return 0;
 
 	/* Inhibit interrupts, and wait for idle. */
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf100.c
index 976a08205441..0b458656e870 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf100.c
@@ -34,12 +34,19 @@ gf100_pmu_reset(struct nvkm_pmu *pmu)
 	nvkm_mc_enable(device, NVKM_SUBDEV_PMU);
 }
 
+bool
+gf100_pmu_enabled(struct nvkm_pmu *pmu)
+{
+	return nvkm_mc_enabled(pmu->subdev.device, NVKM_SUBDEV_PMU);
+}
+
 static const struct nvkm_pmu_func
 gf100_pmu = {
 	.code.data = gf100_pmu_code,
 	.code.size = sizeof(gf100_pmu_code),
 	.data.data = gf100_pmu_data,
 	.data.size = sizeof(gf100_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf119.c
index ca3b4dfe18e3..3dfa79d4fb13 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gf119.c
@@ -30,6 +30,7 @@ gf119_pmu = {
 	.code.size = sizeof(gf119_pmu_code),
 	.data.data = gf119_pmu_data,
 	.data.size = sizeof(gf119_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk104.c
index c26195d5fc32..8f7ec10fd2a4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk104.c
@@ -109,6 +109,7 @@ gk104_pmu = {
 	.code.size = sizeof(gk104_pmu_code),
 	.data.data = gk104_pmu_data,
 	.data.size = sizeof(gk104_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk110.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk110.c
index aac0258a1bab..345741d55a56 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk110.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk110.c
@@ -88,6 +88,7 @@ gk110_pmu = {
 	.code.size = sizeof(gk110_pmu_code),
 	.data.data = gk110_pmu_data,
 	.data.size = sizeof(gk110_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk208.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk208.c
index 0efbc0f9fffb..e4acf7876ea1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk208.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk208.c
@@ -30,6 +30,7 @@ gk208_pmu = {
 	.code.size = sizeof(gk208_pmu_code),
 	.data.data = gk208_pmu_data,
 	.data.size = sizeof(gk208_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk20a.c
index 14862452a597..05e81855c367 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gk20a.c
@@ -196,6 +196,7 @@ gk20a_dvfs_data= {
 
 static const struct nvkm_pmu_func
 gk20a_pmu = {
+	.enabled = gf100_pmu_enabled,
 	.init = gk20a_pmu_init,
 	.fini = gk20a_pmu_fini,
 	.reset = gf100_pmu_reset,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm107.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm107.c
index 25e18f2ea081..459df1ef9e70 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm107.c
@@ -32,6 +32,7 @@ gm107_pmu = {
 	.code.size = sizeof(gm107_pmu_code),
 	.data.data = gm107_pmu_data,
 	.data.size = sizeof(gm107_pmu_data),
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
index 44bef22bce52..31c843145c7a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
@@ -38,6 +38,7 @@ gm20b_pmu_recv(struct nvkm_pmu *pmu)
 
 static const struct nvkm_pmu_func
 gm20b_pmu = {
+	.enabled = gf100_pmu_enabled,
 	.intr = gt215_pmu_intr,
 	.recv = gm20b_pmu_recv,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp100.c
index 0e23d5d4bb34..e210cd6af816 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp100.c
@@ -25,6 +25,7 @@
 
 static const struct nvkm_pmu_func
 gp100_pmu = {
+	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
index f017352206c9..98c7a2a8afc4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
@@ -31,8 +31,15 @@ gp102_pmu_reset(struct nvkm_pmu *pmu)
 	nvkm_mask(device, 0x10a3c0, 0x00000001, 0x00000000);
 }
 
+static bool
+gp102_pmu_enabled(struct nvkm_pmu *pmu)
+{
+	return !(nvkm_rd32(pmu->subdev.device, 0x10a3c0) & 0x00000001);
+}
+
 static const struct nvkm_pmu_func
 gp102_pmu = {
+	.enabled = gp102_pmu_enabled,
 	.reset = gp102_pmu_reset,
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gt215.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gt215.c
index 9b5d97dac550..e04216daea58 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gt215.c
@@ -189,6 +189,12 @@ gt215_pmu_reset(struct nvkm_pmu *pmu)
 	nvkm_rd32(device, 0x022210);
 }
 
+static bool
+gt215_pmu_enabled(struct nvkm_pmu *pmu)
+{
+	return nvkm_rd32(pmu->subdev.device, 0x022210) & 0x00000001;
+}
+
 int
 gt215_pmu_init(struct nvkm_pmu *pmu)
 {
@@ -241,6 +247,7 @@ gt215_pmu = {
 	.code.size = sizeof(gt215_pmu_code),
 	.data.data = gt215_pmu_data,
 	.data.size = sizeof(gt215_pmu_data),
+	.enabled = gt215_pmu_enabled,
 	.reset = gt215_pmu_reset,
 	.init = gt215_pmu_init,
 	.fini = gt215_pmu_fini,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
index 616641d543a8..a4c48a10cd47 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
@@ -20,6 +20,7 @@ struct nvkm_pmu_func {
 		u32  size;
 	} data;
 
+	bool (*enabled)(struct nvkm_pmu *);
 	void (*reset)(struct nvkm_pmu *);
 	int (*init)(struct nvkm_pmu *);
 	void (*fini)(struct nvkm_pmu *);
@@ -36,6 +37,7 @@ void gt215_pmu_intr(struct nvkm_pmu *);
 void gt215_pmu_recv(struct nvkm_pmu *);
 int gt215_pmu_send(struct nvkm_pmu *, u32[2], u32, u32, u32, u32);
 
+bool gf100_pmu_enabled(struct nvkm_pmu *);
 void gf100_pmu_reset(struct nvkm_pmu *);
 
 void gk110_pmu_pgob(struct nvkm_pmu *, bool);